Optoelectronic device and a method for determining the distribution of a substance in a sample

An optoelectronic device comprising:

• a plurality of emitter elements configured to sequentially emit light of different wavelength ranges;
• a plurality of time-of-flight detector elements each configured to detect an intensity of the light emitted by the plurality of emitter elements and reflected from a sample and also to determine a distance of a reflection point of the light from the sample to the respective time-of-flight detector element for each light of the different wavelength ranges;
• and
• at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause the optoelectronic device to generate a three-dimensional image of the sample for the light of each wavelength range emitted by the plurality of emitter elements based on the intensity of light detected and the distance to the reflection point determined at each of the plurality of the time-of-flight detector elements for each light of the different wavelength ranges, and to determine the distribution of a substance in the sample from the three-dimensional images.

A method for determining the distribution of a substance in a sample, wherein the method comprises:

• sequentially emitting light of different wavelength ranges via a plurality of emitter elements, wherein the light emitted by the emitter elements is reflected from a sample;
• detecting an intensity of the light reflected from the sample by each of a plurality of time-of-flight detector elements for each light of the different wavelengths;
• determining a distance of a reflection point of the light from the sample to a respective time-of-flight detector element by each of the plurality of time-of-flight detector elements for each light of the different wavelengths;
• generating a three-dimensional image of the sample, for the light of each wavelength range emitted by the plurality of emitter elements, based on the intensity of light detected and the distance to the reflection point determined at each of the plurality of the time-of-flight detector elements for each light of the different wavelength ranges;
• and
• determining the distribution of a substance in the sample from the three-dimensional images.